论文标题
动态$ z_ {2} $ lattice量规场的Floquet Engineering带有Ultracold Atoms
Floquet Engineering of a Dynamical $Z_{2}$ Lattice Gauge Field with Ultracold Atoms
论文作者
论文摘要
在本文中，我们建议可以通过Floquet方法对一个简单的模型进行耦合到动态晶格量规场的模型。该模型既具有独立的麦克斯韦术语，又具有本地$ z_ {2} $仪表对称性。我们的建议依赖于依赖物种的光学晶格，可以在一个，两个或三个维度上实现。通过统一的转换，该模型可以映射到具有波动的背部电荷的非相互作用的复合费用系统中。借助这张复合费米的图片，预测了两个特征观测。一个是射频光谱，它在所有参数方面都没有分散。第二是动态定位，取决于初始状态的结构。
In this paper, we propose that a simple model, in which fermions coupled to a dynamical lattice gauge field, can be engineered via the Floquet approach. The model possess both a independent Maxwell term and the local $Z_{2}$ gauge symmetry. Our proposal relies on a species dependent optical lattice, and can be achieved in one, two or three dimension. By an unitary transformation, this model can be mapped into a non-interacting composite Fermion system with fluctuating back ground charge. With the help of this composite Fermion picture, two characteristic observations are predicted. One is the radio-frequency spectroscopy, which exhibits no dispersion in all parameter regimes. Second is the the dynamical localization, which depends on the structure of the initial states.
